import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Resultxml extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Resultxml() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String keyword = "";
		String currentPageNo = "1";

		if (request.getParameter("page") != null) {
			if (!"".equals(request.getParameter("page"))) {
				currentPageNo = request.getParameter("page");
			}
		}
		if (request.getParameter("keyword") != null) {
			keyword = request.getParameter("keyword");
		}

		StringBuffer xml = new StringBuffer("");
		try {
			String urlencoded_qword = URLEncoder.encode(keyword, "UTF-8");
			URL url = new URL(
					"http://218.200.230.77/searchinterface/search?searcher=musiclabel&num=20&sorter=1&keyword="
							+ urlencoded_qword + "&page=" + currentPageNo);

//			URL url = new URL("http://localhost/searchinterface/search?searcher=musiclabel&num=20&sorter=1&keyword="
//					+ urlencoded_qword + "&page=" + currentPageNo);

			BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"));
			String s;
			while ((s = in.readLine()) != null) {
				xml.append(s);
			}
			in.close();
			response.setContentType("text/xml;charset=UTF-8");
			PrintWriter out = response.getWriter();
			out.println(xml.toString());
			out.flush();
			out.close();

		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the POST method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
